You cannot use MATLAB without a MATLAB license. To download and use the project, you do not need a special license, just a MATLAB license. You may need to also have the following toolboxes:

Aerospace Blockset and Toolbox
Signal Processing Toolbox
Image Processing Toolbox
Navigation Toolbox
Control System Toolbox
DSP System Toolbox
Optimization Toolbox
Simulink
Stateflow